<template>   
    <div>
        <div id="particles-js"></div>
        <el-card shadow="always" class="login-ruleForm">                        
            <el-divider content-position="right"><h2 style="color: #B8B9BB;">登录系统</h2></el-divider>
            <br/>
            <el-form :model="ruleForm" status-icon :rules="rules" ref="ruleForm" label-width="60px">
                <el-form-item label="账户：" prop="username">
                    <el-input v-model.number="ruleForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码：" prop="pass">
                    <el-input type="password" v-model="ruleForm.pass" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="submitForm('ruleForm')" style="margin-left: 80px;">提交</el-button>
                    <el-button @click="resetForm('ruleForm')">重置</el-button>
                </el-form-item>
            </el-form>
        </el-card>
    </div>
</template>    
<script>
import 'element-ui/lib/theme-chalk/index.css'
// import particles from 'particles.js';
import * as particlesJs from "particles.js"
import particlesConfig from '../assets/particles.json'
import service from '../api/request'
import axios from "axios";
import {login} from '../api/login_api'

export default {
    data() {
        var validateUsername = (rule, value, callback) => {
            if (value === '') {
                callback(new Error('请输入账户'));
            } else {
                callback();
            }
        };
        var validatePass = (rule, value, callback) => {
            if (value === '') {
                callback(new Error('请输入密码'));
            } else {
                if (this.ruleForm.checkPass !== '') {
                    this.$refs.ruleForm.validateField('checkPass');
                }
                callback();
            }
        };
        return {
            ruleForm: {
                pass: '',
                checkPass: '',
                username: ''
            },
            rules: {
                pass: [
                    { validator: validatePass, trigger: 'blur' }
                ],
                username: [
                    { validator: validateUsername, trigger: 'blur' }
                ]
            }
        };
    },
    mounted: function() {          
        particlesJS('particles-js', particlesConfig, function() {
            console.log('callback - particles.js config loaded');
        })
        // particlesJS("particles-js", particlesConfig);        
    },
    methods: {
        submitForm(formName) {
            let _this = this;
            this.$refs[formName].validate((valid) => {
                if (valid) {
                    login({username: this.ruleForm.username, password: this.ruleForm.pass}).then(r=>{
                        _this.GLOBAL_FUN.successMsg();                        
                        _this.$router.push({ path: '/', query: {} });
                    });
                } else {
                    console.log('error submit!!');
                    return false;
                }
            });
        },
        resetForm(formName) {
            this.$refs[formName].resetFields();
        }
    }
}
</script>
  
<style scoped>
.login-ruleForm {
    padding: 10px 0 0 0;    
    z-index: 10;
    position: absolute;
    width: 430px;
    margin-top: 20%;
    margin-left: 65%;
}

#particles-js {   
    z-index: -1;
    position: absolute;
    width: 99.5%;
    height: 98.5%;
    background-color: #2d3a4b;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
}

.el-card {
    border: 1px solid #EBEEF5;
    background-color: #FFF;
    color: #303133;
    transition: .3s;
}
</style>